Reusable jinja2 table - jinja2

Question

I want to use the template to create all the tables of my project, but after writing is appearing errors like this:
jinja2.exceptions.TemplateSyntaxError: expected token ':', got '}'
{{ table(headers={{headers}},items={{item}},url='None') }}
I've looked at the jinja2 website but couldn't find the answer to the syntax error.
# python
#app.route('/products')
def products():
context = {}
qproducts = list(s.query(Product))
context['products'] = qproducts
return render_template('products.html', **context)
# table.html
{% macro table(headers,items,url,var) -%}
<table class='table table-sm table-dark'>
<thead>
<tr>
{{headers}}
</tr>
</thead>
<tbody>
{% for item in items %}
<tr onclick="window.location='{{url}}'">
{{items}}
</tr>
{% endfor %}
</tbody>
</table>
{%- endmacro %}
# products.html
{% from 'table.html' import table %}
{% block headers %}
<th>ID</th>
<th>Price</th>
{%endblock headers%}
{%block item%}
{%for item in products%}
<td>{{item.id}}<td><br>
<td>{{item.price}}<td><br>
{%endfor%}
{%endblock item%}
{{ table(headers={{headers}},items={{item}},url='None') }}

Answer 1

Even when you fix the references to variables (i. e. remove surrounding {{/}}) it won't work the way you expect. block tag can only be used with extends tag, but you use import for macros importing. If you want to write universal macro for table rendering it's better to use combination of macro/call tags:
{% macro table(headers,items,url,var) -%}
<table class='table table-sm table-dark'>
<thead>
<tr>
{{ caller(mode='header') }}
</tr>
</thead>
<tbody>
{% for item in items %}
<tr onclick="window.location='{{url}}'">
{{ caller(mode='row', item) }}
</tr>
{% endfor %}
</tbody>
</table>
{%- endmacro %}
caller here is a reference to a special function which invokes externally-provided callback. Then you can call this macro this way:
{% call(mode, items) table(headers=headers, items=item, url='None') %}
{% if mode='header' %}
<th>ID</th>
<th>Price</th>
{% else %}
{%for item in products%}
<td>{{item.id}}<td><br>
<td>{{item.price}}<td><br>
{% endfor %}
{% endif %}
{% endcall %}
Every mention of caller in macro table invokes body of the caller tag with the specified parameters. So, you can customize the behavior of the macro.